Great Lakes Observing System GLOS DMAC Infrastructure Hardware - - PowerPoint PPT Presentation

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Great Lakes Observing System GLOS DMAC Infrastructure Hardware - - PowerPoint PPT Presentation

IOOS Regional Product Developers Workshop Great Lakes Observing System GLOS DMAC Infrastructure Hardware Server 1(Web/FTP/Application) x86_64 2* 4 Xeon CPU, 16GB RAM 300 GB RAID 1 Server 2(New Purchase) x86_64 4* 4 Xeon CPU,


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SLIDE 1

Great Lakes Observing System

IOOS Regional Product Developer’s Workshop

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SLIDE 2

GLOS DMAC Infrastructure

  • Hardware

– Server 1(Web/FTP/Application) x86_64 2* 4 Xeon CPU, 16GB RAM 300 GB RAID 1 – Server 2(New Purchase) x86_64 4* 4 Xeon CPU, 24GB RAM 600 GB RAID 5/LVM

  • Software Suite

– OS: Red Hat Linux 5.4 – httpd, Tomcat 6, PostgreSQL, MapServer, PHP

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SLIDE 3

GLOS Observation Explorer Featuring

  • Data navigation through both map and text

list

  • Fast access to the latest obs data through

interactive chart or table, up to 7 days

  • Fast access to historic data in any 30 days

interval

  • Record of the Day
  • Switch time zone and unit conversion on

the fly

  • RSS is available for mobile
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SLIDE 4

GLOS Observation Explorer Structure

FTP (Push) Script (Pull) Application Server (Tomcat 6) Servlet Servlet Cache DAO DAO Pojo

Obs Database

JDBC/DBCP Web Server (httpd) Google Map API Google Charting Tool MIT SMILE API Jquery Ajax-enabled web pages Reversed Proxy

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SLIDE 5

GLOS Observation Explorer Demo

http://www.glos.us/obs

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SLIDE 6

GLOS Observation Explorer

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SLIDE 7

Future Improvement of GLOS Observation Explorer

  • Develop obs javascript API library to

expand the usage of observation data and engage third-party developers

  • Add data access/downloading according to

IOOS DIF standards

  • Explorer the mobile entry for the obs data
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SLIDE 8

GLOS Huron to Erie Connecting Waterway Forecasting System

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SLIDE 9

GLOS Huron to Erie Connecting Waterway Forecasting System Developed by GLERL, NOAA

  • Dr. David J. Schwab
  • Dr. Eric J. Anderson
  • Mr. Gregory A. Lang
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SLIDE 10

GLOS Huron to Erie Connecting Waterway Forecasting System

  • FVCOM unstructured-grid model
  • Predict currents, water-level for Lake St.

Clair, St. Clair River, and Detroit Revier

  • Nowcasts every 3 hours, Forecasts every 12

hours

  • 48 hours forecast
  • Resolution varies from 30 meter in the

nearshore to 300 meter in the center of Lake St. Clair

  • New high resolution grids added recently

for Clinton River

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SLIDE 11

HECWFS Viewer on GLOS Featuring

  • Visualize both hourly nowcast and forecast

data on the interactive map

  • Identify water velocity and water level on

each grid with charts

  • Switch time zone and unit conversion on

the fly

  • Serve WMS-T service
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SLIDE 12

HECWFS Viewer Work Flow

HECWFS NETCDF Shp file HECWFS Database MapServer CGI WMS-T

Map file Httpd

PHP Identify

Parser shp2pgsql

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SLIDE 13

HECWFS Viewer Demo

http://www.glos.us/hecwfs

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SLIDE 14
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SLIDE 15

Experience with MapServer on HECWFS Viewer Development

  • True North (not solved)

Mapserver lacks the ability to draw symbols

  • r labels at angles relative to true

geographic north regardless of the map projection being used A temporary fix was provided by Steve Roberts from NOAA/PMEL

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SLIDE 16

Experience with MapServer on HECWFS Viewer Development

  • Symbol Rotation (Solved)

Mapserver used to only support rotation on the counter-clockwise angle (MS RFC 45) |0 90------|-------270 |180 ESRI ArcMap do Geographic and Arithmetic:

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SLIDE 17

Experience with MapServer on HECWFS Viewer Development

Geographic: |0 270-----|--------90 |180 Arithmetic: |90 180-----|--------0 |270

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SLIDE 18

Thank you!

Guan Wang GIS Developer gwang@glc.org